code: def copyfunc(f, name=None):
      """Returns a deepcopy of a function."""
      return types.FunctionType(
          f.__code__,
          f.__globals__,
          name or f.__name__,
          f.__defaults__,
          f.__closure__,
      )
  
file_path: networkx/networkx/algorithms/isomorphism/matchhelpers.py
imports: import math
  import types
  from itertools import permutations
label_desc: Use image node_id 1 for calling a global function with example usage: copyfunc(f, name) and returns: types